I've done that with a camp fire. One night I remember, at the father son
campout. I didn't want to go to the ice cold tent, and freeze in my sleeping
bag. But, I knew I needed the sleep.
I did freeze badly that night. I've never enjoyed that part of being out.
Christopher A. Young
Learn more about Jesus
I like the old "Space Blankets" if they still make them under that name. I
have seen new ones with hand pockets sewn on the corners to help hold it on
as a poncho. They are made out of rip stop material, with foil on one side.
Around a campfire, you can wrap one around yourself, holding the corners
outward with your hands, and feel the campfire cooking you. You will need
to back up a ways until you reach the comfort zone. I have used them for
under tent liners, sleeping bag liners, under sleeping bags, over sleeping
bags, lots of places. They are now in the $15 range, and sure work great.